AD7719BRZ

Product Overview

Category

AD7719BRZ belongs to the category of analog-to-digital converters (ADCs).

Use

The AD7719BRZ is primarily used for converting analog signals into digital data. It is commonly employed in various applications that require accurate and precise conversion of analog signals, such as industrial automation, medical equipment, and scientific instruments.

Characteristics

• High resolution: The AD7719BRZ offers a high-resolution output, ensuring accurate conversion of analog signals.
• Low power consumption: This ADC is designed to operate with low power consumption, making it suitable for battery-powered devices.
• Fast conversion rate: The AD7719BRZ provides a fast conversion rate, enabling real-time data acquisition.
• Wide input voltage range: It can handle a wide range of input voltages, allowing for versatile usage.
• Integrated features: The AD7719BRZ incorporates various features like programmable gain amplifiers and on-chip reference buffers, enhancing its functionality.

Package

The AD7719BRZ comes in a small outline integrated circuit (SOIC) package, which ensures ease of integration into electronic circuits.

Essence

The essence of the AD7719BRZ lies in its ability to accurately convert analog signals into digital data, providing reliable measurements and facilitating further processing.

Packaging/Quantity

The AD7719BRZ is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Resolution: 24 bits
• Input Voltage Range: ±Vref
• Conversion Rate: Up to 4.17 kSPS (thousand samples per second)
• Power Supply: 2.7 V to 5.25 V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AD7719BRZ has a total of 24 pins, each serving a specific function. The pin configuration is as follows:

1. VrefP: Positive reference voltage input
2. VrefN: Negative reference voltage input
3. AGND: Analog ground
4. AVDD: Analog power supply
5. DVDD: Digital power supply
6. DOUT/RDY: Data output/Ready signal
7. SCLK: Serial clock input
8. DIN: Serial data input
9. CS: Chip select input
10. RESET: Reset input
11. AIN1(+) and AIN1(-): Differential analog input 1
12. AIN2(+) and AIN2(-): Differential analog input 2
13. AIN3(+) and AIN3(-): Differential analog input 3
14. AIN4(+) and AIN4(-): Differential analog input 4
15. AIN5(+) and AIN5(-): Differential analog input 5
16. AIN6(+) and AIN6(-): Differential analog input 6
17. AIN7(+) and AIN7(-): Differential analog input 7
18. AIN8(+) and AIN8(-): Differential analog input 8
19. DGND: Digital ground
20. REFOUT: Reference output
21. REFIN: Reference input
22. BUF: Buffer enable
23. GAIN0: Gain selection bit 0
24. GAIN1: Gain selection bit 1

Functional Features

• High-resolution conversion: The AD7719BRZ offers 24-bit resolution, ensuring accurate conversion of analog signals.
• Programmable gain amplifiers: It includes programmable gain amplifiers, allowing for flexible signal conditioning.
• On-chip reference buffers: The on-chip reference buffers ensure stable and accurate voltage references.
• Serial interface: The ADC utilizes a serial interface for easy integration with microcontrollers or other digital devices.
• Ready signal output: The DOUT/RDY pin provides a ready signal, indicating when the conversion is complete.

Advantages and Disadvantages

Advantages

• High resolution ensures precise measurement accuracy.
• Low power consumption makes it suitable for battery-powered applications.
• Fast conversion rate enables real-time data acquisition.
• Wide input voltage range allows for versatile usage.
• Integrated features enhance functionality and simplify circuit design.

Disadvantages

• Limited number of differential analog inputs (8 channels).
• Requires external voltage references for optimal performance.

Working Principles

The AD7719BRZ operates based on the principle of successive approximation. It samples the analog input voltage, performs a series of comparisons, and gradually approximates the digital representation of the input signal. The internal programmable gain amplifiers and reference buffers ensure accurate and stable conversions.

Detailed Application Field Plans

The AD7719BRZ finds application in various fields, including:

1. Industrial Automation: Used